Where is the factory stamp number of Shuishan brand breaker of hook machine located on the hammer body?

The position of the hammer handle. The steel of the breaker hammer is stamped on the hammer handle. Hook Machine's Shuishan brand breaker is equipped with a built-in valve, which minimizes the failure rate, greatly improves durability, minimizes the number of parts (20% less parts than other manufacturers), saves maintenance costs, and takes customer convenience into consideration The differentiated patented technology inside prevents piston strain, loosening of through-bolts and pin detachment.